Comment out a redundant condition

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 0b4125fcdd6ccf05279c848c1257eed89c042343..c98c3334edb97f0a406b62fa864d6c06e4156b2a 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -805,7 +805,7 @@ namespace {
     {
         Depth d = depth - 2 * ONE_PLY - (PvNode ? DEPTH_ZERO : depth / 4);
         ss->skipEarlyPruning = true;
-        search<NT>(pos, ss, alpha, beta, d, true);
+        search<NT>(pos, ss, alpha, beta, d, cutNode);
         ss->skipEarlyPruning = false;
 
         tte = TT.probe(posKey, ttHit);
@@ -823,7 +823,7 @@ moves_loop: // When in check search starts from here
     CheckInfo ci(pos);
     value = bestValue; // Workaround a bogus 'uninitialized' warning under gcc
     improving =   ss->staticEval >= (ss-2)->staticEval
-               || ss->staticEval == VALUE_NONE
+            /* || ss->staticEval == VALUE_NONE Already implicit in the previous condition */
                ||(ss-2)->staticEval == VALUE_NONE;
 
     singularExtensionNode =   !rootNode
@@ -873,9 +873,9 @@ moves_loop: // When in check search starts from here
                         && moveCount >= FutilityMoveCounts[improving][depth];
 
       // Step 12. Extend checks
-      if (   givesCheck
-          && (    moveCount == 1
-              || (!moveCountPruning && pos.see_sign(move) >= VALUE_ZERO)))
+      if (    givesCheck
+          && !moveCountPruning
+          &&  pos.see_sign(move) >= VALUE_ZERO)
           extension = ONE_PLY;
 
       // Singular extension search. If all moves but one fail low on a search of